Integrating with RF

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02-04-2017, 09:10 PM
spherex

Integrating with RF

Does anyone have any experience integrating directly with RadioRA2 via RF (instead of rs232 or telnet)? I'm trying to work around some issues with lag with the published integration protocol, and my only remaining idea is to listen in on the RF frequency. If anyone has any pointers to get me started, it would be much appreciated.

Honestly, I'm somewhat hopeful that this isn't really possible. I'd hate to have someone broadcast a drive-by scene change from outside the house. But I have this suspicion it's all clear-text.

I should add that this isn't an important project, I'm just having fun doing deep integration on my new home automation. I'd almost prefer to have an excuse to learn how RF receivers work :)
02-06-2017, 11:25 AM
SDR-Mike

Quote:

Originally Posted by spherex

Does anyone have any experience integrating directly with RadioRA2 via RF (instead of rs232 or telnet)? I'm trying to work around some issues with lag with the published integration protocol, and my only remaining idea is to listen in on the RF frequency. If anyone has any pointers to get me started, it would be much appreciated.

Honestly, I'm somewhat hopeful that this isn't really possible. I'd hate to have someone broadcast a drive-by scene change from outside the house. But I have this suspicion it's all clear-text.

I should add that this isn't an important project, I'm just having fun doing deep integration on my new home automation. I'd almost prefer to have an excuse to learn how RF receivers work :)

You should be able to see the transmissions on a 433.4 MhZ band, but direct integration would be nearly impossible as the protocol is proprietary.
02-06-2017, 12:53 PM
spherex

Quote:

Originally Posted by SanDiegoRep

You should be able to see the transmissions on a 433.4 MhZ band, but direct integration would be nearly impossible as the protocol is proprietary.

Out of curiosity, where did you get that the band is 433.4 MHz? Their whitepaper says 434 MHz, but another site says it's 433.6 MHz.

https://www.lutron.com/TechnicalDocu...whitepaper.pdf
https://hackaday.io/project/2291-int...less-interface
02-06-2017, 02:44 PM
SDR-Mike

It's a number that Lutron engineers probably told me. 434MHz is the median of the range used for North America. It could very well be 433.6.
03-20-2017, 09:38 PM
donmor

Can you explain what is the issue with the telnet, I'm using it and it is quick and reliable.
03-22-2017, 10:14 AM
spherex

Quote:

Originally Posted by donmor

Can you explain what is the issue with the telnet, I'm using it and it is quick and reliable.

It turned out to not be an issue with telnet but with keypad presses. They're very slow to report over either telnet or RS-232. Makes it near impossible to build responsive integration that reacts to keypads.
03-22-2017, 09:55 PM
Lukeetal

Quote:

Originally Posted by spherex

Does anyone have any experience integrating directly with RadioRA2 via RF (instead of rs232 or telnet)? I'm trying to work around some issues with lag with the published integration protocol, and my only remaining idea is to listen in on the RF frequency. If anyone has any pointers to get me started, it would be much appreciated.

Honestly, I'm somewhat hopeful that this isn't really possible. I'd hate to have someone broadcast a drive-by scene change from outside the house. But I have this suspicion it's all clear-text.

I should add that this isn't an important project, I'm just having fun doing deep integration on my new home automation. I'd almost prefer to have an excuse to learn how RF receivers work :)

I would love to know this too!